An LFTR would start with U-235 with U-233 increasing as it is produced in the system. U-233 would be chemically separated from the recirculating solution. Likely there would be 'neutron sources' placed in the reactor system.DLHill said:In an liquid fluoride thorium reactor, how is the reaction started? My assumption would be a piece of fissile material would be somehow inserted into the fuel to introduce neutrons to the solution, but I have not found any information to show if this is how the reaction is started. If this is not it, how do the reactors begin breeding and fissioning the U 233?
The Thorium Fuel Cycle is a type of nuclear fuel cycle that uses thorium as a fuel source instead of uranium. It involves the conversion of thorium into a fissile material, typically uranium-233, which can then be used to sustain a nuclear reaction.
The Thorium Fuel Cycle begins with the conversion of thorium into uranium-233 through a process called transmutation. The uranium-233 is then used as a fuel in a nuclear reactor, where it undergoes fission and releases energy. The byproducts of this reaction can also be recycled and used as fuel in a continuous cycle.
The main advantage of the Thorium Fuel Cycle is that it produces less nuclear waste compared to traditional uranium-based fuel cycles. Thorium is also more abundant and cheaper than uranium, making it a more sustainable and cost-effective option. Additionally, the Thorium Fuel Cycle can be designed to be inherently safer and less prone to nuclear accidents.
One of the main challenges to implementing the Thorium Fuel Cycle is the lack of infrastructure and technology for large-scale production and use of thorium. It also requires significant research and development to optimize the process and ensure its safety. Additionally, there may be political and regulatory obstacles to overcome in order to switch from traditional nuclear fuel cycles to the Thorium Fuel Cycle.
The Thorium Fuel Cycle has shown promise as a potential alternative to traditional nuclear fuel cycles, but it is still in the early stages of development. More research and testing is needed to fully understand its potential and address any challenges that may arise. It may also be used in combination with other fuel cycles to create a more sustainable and diverse mix of energy sources.